Iron gasket for machine tool groove milling positioning fixture
Technical field
Fixture for positioning workpiece when the present invention relates to a kind of machine tooling, specifically refers to a kind of for iron gasket for machine tool groove milling positioning fixture.
Background technology
Parallels is the indispensable a kind of part of large shape adjustment accuracy of machine.Parallels structure as shown in Figure 1, Figure 2, Figure 3 shows, it is roughly a frid structure, and the groove on frid, as pad groove 1, on the right side of pad groove 1, cell wall 4 centre has about one gap, right side cell wall is divided into two parts by this gap, extends to form U-shaped mouth 2 bottom gap in the middle part of pad trough floor; On the left of pad groove, cell wall 4 is provided with two inwardly protruded boss 5, and the cell wall between two boss is provided with the U-shaped groove 6 from up to down extended, the groove walls in U-shaped groove is provided with U-shaped boss 7.Adding man-hour, the location of this U-shaped groove 6 extremely bothers, and needs first centering to slot, and then the deep gouge changing T-slot milling cutter groove milling two ends is to form said structure.And the parallels enormous amount needed for a lathe, if add man-hour piecemeal carry out the clamping of cutter centering, its tool setting process is exactly a step very consuming time, cause parallels long processing time, efficiency low, and the specification of parallels there will be certain deviation.
Summary of the invention
Cause long processing time, inefficient technical problem for its tool setting centering is consuming time when overcoming current machining tool parallels U-shaped groove, the invention provides a kind of iron gasket for machine tool groove milling positioning fixture.
The technical solution used in the present invention is: iron gasket for machine tool groove milling positioning fixture, comprise two contour cushion blocks, it is characterized in that: the height of this cushion block and the consistency of thickness of extra bed parallels pad trough floor, described cushion block is provided with the through hole of up/down perforation, one clamping plate is lying on two cushion blocks, the two ends of clamping plate are provided with the bolt hole corresponding with through hole on cushion block, and tommyhead bolt adopts nut to fix through the through hole on cushion block and the bolt hole on clamping plate; Be provided with the T-shaped milling cutter feed mouth of indent in the centre of clamping plate, be provided with positioning key in the side of feed mouth opening, after iron gasket for machine tool is clamped board clamping, the convex boss on the left of clamping plate and parallels on cell wall offsets, and positioning key and convex boss sidewall offset.
This iron gasket for machine tool groove milling positioning fixture manufacture is simple, structure is unique, has simple to operate, easy-to-use advantage, effectively can raise the efficiency, save cost, ensures crudy.
Accompanying drawing explanation
Accompanying drawing 1 is the top view of iron gasket for machine tool.
Accompanying drawing 2 is the left view of iron gasket for machine tool.
Accompanying drawing 3 be in accompanying drawing 1 A-A to sectional view.
Accompanying drawing 4 is the structure top view of the new shape of this practicality.
Accompanying drawing 5 is structural front view of the present invention.
Accompanying drawing 6 is the top view after this fixture is combined with iron gasket for machine tool and milling machine.
In figure, 1, pad groove, 2, U-shaped mouth, 3, right side cell wall, 4, left side cell wall, 5, boss, 6, U-shaped groove, 7, U-shaped boss, 8, pad trough floor, 9, cushion block, 10, tommyhead bolt, 11, clamping plate, 12, feed mouth, 13, positioning key, 14, work top, 15, T-shaped milling cutter.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in accompanying drawing 4 and accompanying drawing 5, this iron gasket for machine tool groove milling positioning fixture, comprise two contour cushion blocks 9, cushion block 9 is provided with the through hole of up/down perforation, one clamping plate 11 is lying on two cushion blocks 9, the two ends of clamping plate 11 are provided with the bolt hole corresponding with through hole on cushion block, and tommyhead bolt 10 adopts nut to fix through the through hole on cushion block and the bolt hole on clamping plate.
As shown in Figure 4, be provided with the T-shaped milling cutter feed mouth 12 of indent in the centre of clamping plate 11, be provided with positioning key 13 in the side of feed mouth opening.
By reference to the accompanying drawings shown in 6, the tommyhead bolt 10 of fixing cushion block 9 and clamping plate 11 is fixed in the T-slot of work top 14, iron gasket for machine tool is put into below clamping plate, left side cell wall 4 points to T-shaped milling cutter 15, convex boss 5 on the left of clamping plate 11 and parallels on cell wall offsets, positioning key 13 and convex boss 5 sidewall offset, locking clamping plate 11 is by fixing for iron gasket for machine tool location, T-shaped milling cutter 15 can process the U-shaped groove 6 on the cell wall 4 of left side, after processing one piece, unclamp clamping plate 11 and change another block iron gasket for machine tool to be processed, the positioning key 13 on clamping plate 11 is utilized to get final product quick position, overcome tradition and add the technical problem that one piece of independent tool setting location of needs is often processed in man-hour requirement.
By accompanying drawing 5 and foregoing description known, the height of cushion block should with the consistency of thickness with extra bed parallels pad trough floor.The feed mouth 12 in addition clamping plate 11 arranged is in order to T-shaped milling cutter abdicates feed space when processing the counterbore of U-shaped groove inner end, prevents clamping plate from limiting the feed of T-shaped milling cutter.